/*

 * Copyright (c) 2019-2020, Sergey Bugaev <bugaevc@serenityos.org>

 *

 * SPDX-License-Identifier: BSD-2-Clause

 */

#pragma once

#include <AK/ByteString.h>

#include <AK/OwnPtr.h>

#include <AK/String.h>

#include <LibMarkdown/Block.h>

#include <LibMarkdown/ContainerBlock.h>

namespace Markdown {

class Document final {

public:

    Document(OwnPtr<ContainerBlock> container)

        : m_container(move(container))

    {

    }

    ByteString render_to_html(StringView extra_head_contents = ""sv) const;

    ByteString render_to_inline_html() const;

    ErrorOr<String> render_for_terminal(size_t view_width = 0) const;

    /*

     * Walk recursively through the document tree. Returning `RecursionDecision::Recurse` from

     * `Visitor::visit` proceeds with the next element of the pre-order walk, usually a child element.

     * Returning `RecursionDecision::Continue` skips the subtree, and usually proceeds with the next

     * sibling. Returning `RecursionDecision::Break` breaks the recursion, with no further calls to

     * any of the `Visitor::visit` methods.

     *

     * Note that `walk()` will only return `RecursionDecision::Continue` or `RecursionDecision::Break`.

     */

    RecursionDecision walk(Visitor&) const;

    static OwnPtr<Document> parse(StringView);

private:

    OwnPtr<ContainerBlock> m_container;

};

}